Vaccination Rates in China

Margaret, i'm wondering eno the back drop you said was ining acove, declining delta. There are flare ups around the world, and the differences and in vaccination rates around the world,. The different kinds of baccines used vary greatly as well. And so 'm wondering at what point you start getting concerned, say, for instance, the flare up that we're seen right now in southern china having a ripple impact on the rest of the world or that region. So certainly wee going to watch these things carefully, keep in mind china weakness in china.